🔹 Siemens SENTRON 3WT Air Circuit Breaker – 3WT8165-6UA18-5AB2 (Microprocessor Trip Unit ACB)
🔹 Product Description
The Siemens 3WT8165-6UA18-5AB2 is a SENTRON 3WT series Air Circuit Breaker (ACB) designed for high-capacity low-voltage power distribution systems with advanced intelligent protection features. It is equipped with a microprocessor-based electronic trip unit (ETU) that ensures precise, reliable, and adaptive protection for modern electrical networks.
This breaker is widely used in industrial plants, manufacturing units, commercial complexes, data centers, infrastructure projects, and critical power distribution systems, where uninterrupted power supply, safety, and selective coordination are essential.
The integrated microprocessor trip unit provides protection against overload, short circuit, and earth fault conditions, along with adjustable protection settings, real-time diagnostics, and coordination capability. This helps improve system reliability, reduce downtime, and ensure stable operation in complex electrical distribution networks.
The SENTRON 3WT series is Siemens’ advanced intelligent ACB platform, designed for smart and modular power distribution systems. It supports withdrawable (draw-out) construction, allowing safe maintenance and easy replacement without shutting down the entire system.
According to Siemens 3WT platform specifications, the series supports high-rated current frames up to 4000A with breaking capacity up to ~80kA (depending on configuration), making it suitable for heavy-duty industrial applications.
🔹 Key Features
• Genuine Siemens SENTRON 3WT Air Circuit Breaker
• Model: 3WT8165-6UA18-5AB2
• Microprocessor-based electronic trip unit (intelligent protection system)
• Protection against overload, short circuit, and earth fault
• High breaking capacity for industrial power systems
• Withdrawable (draw-out) type design for safe maintenance
• Supports selective coordination in complex networks
• Suitable for MCC, PCC, and LT distribution panels
• Advanced fault diagnostics and system monitoring
• Long operational life with high reliability
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3WT |
| Model Number | 3WT8165-6UA18-5AB2 |
| Product Type | Air Circuit Breaker (ACB) |
| Rated Current | ~1600 A (typical 3WT8165 frame class) |
| Poles | 4 Pole |
| Trip Unit | Microprocessor-based Electronic Trip Unit (ETU) |
| Protection Functions | Overload, Short Circuit, Earth Fault |
| Mounting Type | Withdrawable / Draw-out type |
| Breaking Capacity | Up to ~66 kA (variant dependent) |
| Application | Industrial / Commercial Power Distribution |
| Brand | Siemens |
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